6-2

In the stage's second area (with the water that rises high and sinks low), there's an invisible block just above the first palm tree you see. Hit the block and a vine will shoot towards the sky, leading you to a platform with a brick block. The brick block houses a P Switch that, when hit, will create a block platform to the right. Quickly hit the P Switch and jump along the flying question block to reach the brick platform and grab the first Star Coin.

You can spot the third Star Coin late in the stage, underneath the main path. There's a load of spinys patrolling the area near the coin. Grab the Starman from the nearby question block, then quickly run right to find an opening that lets you into the area with the Star Coin.

Just under halfway through the stage is a pair of tall green pipes among a rising water line. Duck into the pipe on the left and Mario will be shot into the sky to reach a hidden area. Stand near the front of the platform and jump to hit the boxes that scroll by Mario and you'll uncover coins and 1-Ups.